April 21 » Spanish–American War: The United States Navy begins a blockade of Cuban ports. When the U.S. Congress issued a declaration of war on April 25, it declared that a state of war had existed from this date.
August 13 » Spanish–American War: Spanish and American forces engage in a mock battle for Manila, after which the Spanish commander surrendered in order to keep the city out of Filipino rebel hands.
August 23 » The Southern Cross Expedition, the first British venture of the Heroic Age of Antarctic Exploration, departs from London.
September 10 » Empress Elisabeth of Austria is assassinated by Luigi Lucheni.
October 6 » Phi Mu Alpha Sinfonia, the largest American music fraternity, is founded at the New England Conservatory of Music.
October 18 » The United States takes possession of Puerto Rico from Spain.
Day of marriage June 24, 1920
The temperature on June 24, 1920 was between 6.7 °C and 20.3 °C and averaged 13.7 °C. There was 12.6 hours of sunshine (75%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 16 » The League of Nations holds its first council meeting in Paris, France.
May 7 » Morecambe Football Club was founded during a meeting at the West View Hotel on the town's promenade.
August 11 » The Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence.
August 26 » The 19th amendment to United States Constitution takes effect, giving women the right to vote.
October 10 » The Carinthian plebiscite determines that the larger part of the Duchy of Carinthia should remain part of Austria.
December 24 » Gabriele D'Annunzio surrendered the Italian Regency of Carnaro in the city of Fiume to Italian armed forces.
Day of death January 15, 1969
The temperature on January 15, 1969 was between 3.4 °C and 5.7 °C and averaged 4.4 °C. There was 7.2 mm of rain during 6.7 hours. There was 0.6 hours of sunshine (7%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
April 1 » The Hawker Siddeley Harrier, the first operational fighter aircraft with Vertical/Short Takeoff and Landing capabilities, enters service with the Royal Air Force.
April 5 » Vietnam War: Massive antiwar demonstrations occur in many U.S. cities.
June 23 » IBM announces that effective January 1970 it will price its software and services separately from hardware thus creating the modern software industry.
September 25 » The charter establishing the Organisation of Islamic Cooperation is signed.
October 21 » The 1969 Somali coup d'état establishes a Marxist–Leninist administration.
December 6 » Altamont Free Concert: At a free concert performed by the Rolling Stones, eighteen-year old Meredith Hunter is stabbed to death by Hells Angels security guards.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I186758.php : accessed October 8, 2026), "Aaltje de Groot (1898-1969)".
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